There are 3 types of rocks: Igneous: Is caused by magma freezing or coolig; 2 types of Igneous rock are:
-Intrusive: which froms under the earths crust.
-Extrusive: which forms above the earths surface. Sedimentary: Is formed at or near the earths surface, and itis not formed under heat and pressure; 3 types of Sedimentary rocks are:
-Clastic: when rock or mineral fragments stick together.
-Chemical: when sedimentary rock forms when minerals crystallize out of a solution eg: salt water becoming rock.
-Oraganic: when rock forms from the remains of organisms. Metamorphic: Is when rocks undergo structure, texture, and composition changes due to heat and pressure; 2 types of Metamorphic rocks are:
-Contact: Coming in contact with magma, when the magma moves through the earths crust it "cooks" it and turns the surrounding minerals into different minerals.
-Regional: When pressure builds up in a rock that is deeply burried or when pieces of the earths crust collide.
7 ways to distinguish minerals are: -Color
-Luster (how does it reflect light?) -Streak (does it leave a mark on a ceramic tile?) -Fracture (how does it break?) -Mohs Hardness Scale (1-10, when you scratch it does it flake off?) -Density (Mass/Volume) -Special Properties (Magnetic, taste test, chemical reaction, radio active, optical, flourescent?)
There are 3 types of rocks:
Igneous: Is caused by magma freezing or coolig;
2 types of Igneous rock are:
-Intrusive: which froms under the earths crust.
-Extrusive: which forms above the earths surface.
Sedimentary: Is formed at or near the earths surface, and itis not formed under heat and pressure;
3 types of Sedimentary rocks are:
-Clastic: when rock or mineral fragments stick together.
-Chemical: when sedimentary rock forms when minerals crystallize out of a solution eg: salt water becoming rock.
-Oraganic: when rock forms from the remains of organisms.
Metamorphic: Is when rocks undergo structure, texture, and composition changes due to heat and pressure;
2 types of Metamorphic rocks are:
-Contact: Coming in contact with magma, when the magma moves through the earths crust it "cooks" it and turns the surrounding minerals into different minerals.
-Regional: When pressure builds up in a rock that is deeply burried or when pieces of the earths crust collide.
7 ways to distinguish minerals are:
-Color
-Luster (how does it reflect light?)
-Streak (does it leave a mark on a ceramic tile?)
-Fracture (how does it break?)
-Mohs Hardness Scale (1-10, when you scratch it does it flake off?)
-Density (Mass/Volume)
-Special Properties (Magnetic, taste test, chemical reaction, radio active, optical, flourescent?)
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